Arizona Diamondbacks ace Corbin Burnes left Sunday's start with an apparent arm injury.

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The right-hander's cutter velocity dipped by two to three ticks prior to his untimely departure. Burnes got through 4.2 scoreless innings before giving up a two-out single to Washington Nationals shortstop CJ Abrams.

A mound visit from Diamondbacks manager Torey Lovullo and an athletic trainer was brief, and Burnes made his exit moments after to the dugout.

Arizona led 3-0 following Burnes' 70-pitch performance. Diamondbacks left-hander Jalen Beeks replaced Arizona's ace on the hill.

Burnes signed a six-year, $210 million contract with the Diamondbacks in the offseason, and thus, any time on the injured list would be

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